Regulators authorized Johnson and Johnson's Covid 19 vaccine for emergency use Saturday, one day after a panel of outside experts backed the one shot immunization.

Now that it has a blessing of the Food and Drug Administration, Johnson and Johnson plans to ship 3 to 4 million doses next week.

On Thursday, President Joe Biden pledged to quickly distribute J and J's vaccine pending its approval.

We have a plan to roll it out as quickly as Johnson and Johnson can make it.

More than 50 million vaccine shots have been administered nationwide.

Appoint Biden highlighted as a halfway point of his goal of vaccinating 100 million people in the 1st 100 days after taking office.

Distribution of J and J's vaccine is a lot easier than those already available in the U.

S.

Made by Pfizer.

Beyond Tech and Moderna, it's vaccine can be stored in normal refrigerator temperatures instead of ultra cold storage, and it's the only one that requires just a single shot.

A trial found that J and J's vaccine was 66% effective at preventing moderate to severe cases of covid 19, and it was 100% effective at preventing hospitalizations 28 days after vaccination, the company is developing a second generation vaccine that would target the more transmissible South African variant.

It plans to start Phase one trials by this summer.